Carl I. Aslakson, 86, a retired captain with the National Oceanic & Atmospheric Administration, who was a veteran of both world wars, died March 11 at the National Naval Medical Center of polymyositis, a vascular disease. He had lived in Bethesda from 1937 until moving to McLean in 1981.

Capt. Aslakson was a native of Park River, N.D., and earned his bachelor's degree in civil engineering at the University of Minnesota. He served with the National Guard in the Mexican border campaign of 1916, in the Marine Corps during World War I, and the Army Air Forces during World War II.

He had received his commission with the old U.S. Coast & Geodetic Survey in 1923. After World War II, he returned to the survey and was technical adviser for radio wave propagation and meteorology at Cape Canaveral, Fla. He retired from the survey in 1955.

He received the Department of Commerce Gold Medal and also received an award for his work with the Air Forces during World War II.

Capt. Aslakson was a member of the Washington Academy of Science, the Society of Missile Pioneers and the Cosmos Club. He was a founder of the National Capitol Shell Club.

Survivors include his wife, Marian Corbin Aslakson of McLean; a son, Richard C., of Lake Jackson, Tex.; a brother, Arnold C., of San Diego, Calif., and three grandchildren.